Home / 156,969.32-216,617.17-85,349.53

Finding the Fourth Proportional to 156,969.32, 216,617.17 and 85,349.53

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Solution

The fourth proportional to 156,969.32, 216,617.17 and 85,349.53 is: 117,782.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.32 : 216,617.17 = 85,349.53 : x
  2. Step 2: Convert to fraction form
    156,969.32/216,617.17 = 85,349.53/x
  3. Step 3: Cross multiply
    156,969.32x = 216,617.17 × 85,349.53
  4. Step 4: Simplify right side
    156,969.32x = 18,488,172,139.60
  5. Step 5: Solve for x
    x = 18,488,172,139.60/156,969.32
  6. Step 6: Final answer
    x = 117,782.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.